Home / 6,921.52-9,551.56-4,231.88

Finding the Fourth Proportional to 6,921.52, 9,551.56 and 4,231.88

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Solution

The fourth proportional to 6,921.52, 9,551.56 and 4,231.88 is: 5,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.52 : 9,551.56 = 4,231.88 : x
  2. Step 2: Convert to fraction form
    6,921.52/9,551.56 = 4,231.88/x
  3. Step 3: Cross multiply
    6,921.52x = 9,551.56 × 4,231.88
  4. Step 4: Simplify right side
    6,921.52x = 40,421,055.73
  5. Step 5: Solve for x
    x = 40,421,055.73/6,921.52
  6. Step 6: Final answer
    x = 5,839.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.